Composite medical cotton yarn pad
By designing a composite medical cotton gauze pad, which combines highly absorbent materials, an antibacterial layer, and a breathable and waterproof layer, the problems of insufficient liquid absorption, easy adhesion to wounds, and poor antibacterial properties of traditional cotton gauze pads are solved. This achieves efficient liquid absorption, antibacterial effect, and breathability, promoting wound healing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-03-17
AI Technical Summary
Traditional medical cotton gauze pads have limited absorbency, easily stick to wounds, lack antibacterial function, have insufficient liquid absorption capacity and poor breathability, increasing the risk of infection.
It adopts a composite structure consisting of an outer gauze layer, an inner absorbent core, an antibacterial layer, a waterproof layer, and an adhesive layer. The outer gauze layer is made of degreased cotton gauze, the inner absorbent core is made of a composite of highly absorbent non-woven fabric and superabsorbent polymer, the antibacterial layer is made of silver ion-containing materials, the waterproof layer is made of a breathable waterproof membrane, the adhesive layer is coated with medical pressure-sensitive adhesive, and it also contains a healing-promoting layer such as a collagen sponge loaded with epidermal growth factor.
It significantly improves absorbency, inhibits bacterial growth, prevents skin from becoming stuffy, avoids wound adhesion, promotes wound healing, and is easy to use.
Smart Images
Figure CN223995054U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical dressing technology, and in particular relates to a composite medical cotton gauze pad. Background Technology
[0002] Medical gauze pads are commonly used dressings in clinical practice for wound care, hemostasis, and absorption of exudate. Traditional gauze pads have limited absorbency, tend to stick to wounds, and lack antibacterial properties, potentially increasing the risk of infection. While improved gauze pads exist in existing technologies, they still suffer from insufficient absorbency and poor breathability. Therefore, there is an urgent need for a composite medical gauze pad that combines high absorbency, antibacterial properties, and breathability. Utility Model Content
[0003] In view of the above situation and to overcome the defects of the existing technology, the purpose of this utility model is to provide a composite medical cotton gauze pad, which effectively solves the problems of insufficient liquid absorption, easy adhesion to wounds, poor antibacterial properties and poor breathability.
[0004] The technical solution to the technical problem is as follows: it includes an outer gauze layer and an inner absorbent core. The outer gauze layer is wrapped with a healing-promoting layer. An antibacterial layer is provided between the outer gauze layer and the inner absorbent core. A waterproof layer is provided on the back of the inner absorbent core. An adhesive layer is fixed to the edge of the waterproof layer. Release paper is covered on the adhesive layer.
[0005] Preferably, the outer gauze layer is made of degreased cotton gauze.
[0006] Preferably, the inner absorbent core is composed of a composite of highly absorbent nonwoven fabric and superabsorbent polymer.
[0007] Preferably, the healing-promoting layer is a collagen sponge loaded with epidermal growth factor (EGF), with an EGF concentration of 10-50 μg / cm².
[0008] Preferably, the antibacterial layer is made of a silver ion-containing material with a silver ion concentration of 0.1%-0.5%.
[0009] Preferably, the waterproof layer is made of a breathable waterproof membrane.
[0010] Preferably, the adhesive layer is coated with medical pressure-sensitive adhesive.
[0011] This invention offers the following advantages over traditional devices: 1) The inner absorbent core, combined with superabsorbent polymer, significantly enhances liquid absorption capacity and provides high absorbency; 2) The antibacterial layer effectively inhibits bacterial growth and reduces the risk of infection; 3) The waterproof layer uses breathable materials to prevent skin discomfort from stuffiness; 4) The adhesive layer is designed for easy fixation, and the release paper protects the adhesive layer, making it convenient to use; 5) The healing-promoting layer accelerates wound healing; 6) The outer gauze layer is soft, preventing wound adhesion and making it suitable for long-term use. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the front view of this utility model.
[0013] Reference numerals: 1. Outer gauze layer; 2. Inner absorbent core; 3. Healing-promoting layer; 4. Antibacterial layer; 5. Waterproof layer; 6. Adhesive layer; 7. Release paper. Detailed Implementation
[0014] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0015] Depend on Figure 1 A composite medical cotton gauze pad is provided, comprising an outer gauze layer 1 and an inner absorbent core 2. The outer gauze layer 1 is wrapped with a healing-promoting layer 3. An antibacterial layer 4 is provided between the outer gauze layer 1 and the inner absorbent core 2. A waterproof layer 5 is provided on the back of the inner absorbent core 2. An adhesive layer 6 is fixed to the edge of the waterproof layer 5. A release paper 7 is covered on the adhesive layer 6.
[0016] The outer gauze layer 1 is made of degreased cotton gauze, which is soft and absorbent, and is used to contact the wound and absorb exudate.
[0017] The inner absorbent core 2 is composed of highly absorbent non-woven fabric and superabsorbent polymer resin, which is used to enhance liquid absorption capacity.
[0018] The healing-promoting layer 3 is a collagen sponge loaded with epidermal growth factor (EGF), with an EGF concentration of 10-50 μg / cm².
[0019] The antibacterial layer 4 is made of a material containing silver ions, with a silver ion concentration of 0.1%-0.5%, ensuring antibacterial effect and being harmless to the human body.
[0020] The waterproof layer 5 is made of a breathable waterproof membrane to prevent liquid from penetrating to the outside.
[0021] The adhesive layer 6 is coated with medical pressure-sensitive adhesive to fix the medical cotton gauze pad.
[0022] In use, this invention uses a freeze-drying method to combine EGF with collagen sponge to form a healing-promoting layer 3. After each layer is bonded with a medical adhesive, it is sterilized by gamma rays and sealed in a packaging bag. When treating a wound, the packaging bag is torn open, and the outer gauze layer 1 covers the wound and absorbs exudate. The outer gauze layer 1 has been degreased to prevent it from sticking to the wound. The healing-promoting layer 3 is wrapped inside the outer gauze layer 1. The epidermal growth factor in the healing-promoting layer 3 penetrates downward to the wound through the exudate, which is beneficial to wound healing. The antibacterial layer 4 inhibits bacterial growth and protects the wound. The inner absorbent core 2 further absorbs liquid and keeps the wound dry. The waterproof layer 5 prevents liquid from seeping to the outside. The release paper 7 is torn open, and the adhesive layer 6 can be pasted onto the skin around the wound to fix the medical gauze pad. The operation is simple, convenient and practical.
[0023] This embodiment does not impose any limitation on the shape, material, structure, etc. of this utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.
Claims
1. A composite medical cotton gauze pad, characterized by, It comprises an outer gauze layer (1) and an inner absorbent core (2), the outer gauze layer (1) is wrapped with a healing-promoting layer (3), an antibacterial layer (4) is arranged between the outer gauze layer (1) and the inner absorbent core (2), the back of the inner absorbent core (2) is provided with a waterproof layer (5), the edge of the waterproof layer (5) is fixed with an adhesive layer (6), and the adhesive layer (6) is covered with release paper (7).
2. The composite medical cotton gauze pad according to claim 1, characterized in that, The outer gauze layer (1) is made of defatted cotton gauze.
3. The composite medical cotton gauze pad according to claim 1, characterized in that, The inner absorbent core (2) is made of high water-absorbing non-woven fabric and high molecular water-absorbing resin.
4. The composite medical cotton gauze pad according to claim 1, characterized in that, The healing-promoting layer (3) is a collagen sponge loaded with epidermal growth factor, and the EGF concentration is 10-50 μg / cm².
5. The composite medical cotton gauze pad according to claim 1, characterized in that, The antibacterial layer (4) is made of a material containing silver ions, and the silver ion concentration is 0.1%-0.5%.
6. The composite medical cotton gauze pad according to claim 1, characterized in that, The waterproof layer (5) is made of a breathable waterproof film.
7. The composite medical cotton gauze pad according to claim 1, characterized in that, The adhesive layer (6) is coated with medical pressure-sensitive adhesive.